Adding one normally open indication or interlock contact with ABB CA4-10 on a compatible ABB contactor
Industrial buyers searching for ABB CA4-10 usually need three things at the same time: correct product identity, usable technical parameters and a clear boundary around configuration-dependent options. This corrected page addresses those points without repeating administrative tables.
Accessory function in the control circuit
ABB CA4-10 is identified here as a ABB front-mounted auxiliary contact block. This compact block adds a single normally open auxiliary contact to a compatible ABB contactor. It is used in control logic and does not replace a main power pole or a motor-protection device.
Contact logic and host-contactor fit
Compatibility for ABB CA4-10 must be established by function and configuration, not enclosure appearance. CA4-10 provides 1 NO. It is not equivalent to CA4-01, which provides 1 NC, or multi-contact CA4 variants. Contact numbering and schematic function should be confirmed before rewiring.
CA4-10 identification
The following table gives the relevant technical profile for ABB CA4-10. It appears once on this page and separates confirmed family data from configuration-dependent details.
| Exact product reference | ABB CA4-10 |
| Product type | ABB front-mounted auxiliary contact block |
| Type | CA4-10 |
| ABB order code | 1SBN010110R1010 |
| Accessory function | Auxiliary contact expansion |
| Contact arrangement | 1 normally open contact |
| Mounting position | Front mounted |
| Use | Contactor feedback, interlock or control logic |
ABB catalog material identifies CA4-10 as front-mounted 1 NO auxiliary contact block with order code 1SBN010110R1010.
Fitting and continuity test
Installation planning for ABB CA4-10 should protect the existing wiring, process and configuration evidence. De-energize the control circuit, inspect the host contactor front interface and seat the block fully. After fitting, test mechanical actuation and verify continuity of the normally open contact in both contactor states.
Feedback and interlock examples
Application review for ABB CA4-10 should start with the actual process or machine duty. Applications include run feedback, electrical interlocking, PLC status input and seal-in circuits. The auxiliary circuit voltage and utilization category must remain within the published accessory ratings.
Reference accessory image

The image is used as a stock or family reference for ABB CA4-10. Confirm the delivered label, connectors, housing and included accessories against the approved quotation.
Ordering without NO/NC confusion
To obtain a technically comparable offer for ABB CA4-10, the inquiry should go beyond price and availability. A clear order request states CA4-10, order code 1SBN010110R1010, the host contactor type and the required contact logic. The host device matters because front geometry and accessory compatibility vary by contactor family.
- Keep the complete ABB CA4-10 phrase on the quotation and purchase order.
- Ask the supplier to identify inclusions, exclusions and the supporting document revision.
- Resolve technical deviations before order release rather than during receiving inspection.
Final order review for ABB CA4-10
Before release, compare ABB CA4-10 with the nameplate, current manufacturer data and the installed application. Keep ABB CA4-10 on the RFQ, supplier offer, purchase order and incoming-inspection record so engineering and procurement review the same item.
